Allusion
Definition: a reference in literature to a familiar person, place, thing, or event.


Example:
"I was not born in a manger. I was actually born on Krypton and sent here by my father, Jor-el, to save the Planet Earth."
(Senator Barack Obama, speech at a fund-raiser for Catholic charities, October 16, 2008)


LINK!
http://www.youtube.com/watch?v=5KFRWEG6Gtg&feature=related